Large diameter pipe cutting apparatus

Abstract

The utility model discloses a large -calibre pipe cutting device, including base, cutting device, and base includes support platform and support, and support platform fixed mounting is in the upper end of support, and the upper end surface of support platform supports large -calibre pipe, and cutting device includes casing and saw blade, and the casing includes hinged end and movable end, and hinged end rotation is connected in support, and saw blade installs in casing, and the casing includes accommodating groove, and the opening of accommodating groove is toward support platform, and the part of saw blade is located in the opening end of accommodating groove, and saw blade passes through hinged end and movable end, and the casing rotates and then saw blade can cut off large -calibre pipe, and the utility model discloses the cutting of the large -calibre pipe of being placed on support platform through the cutting device of being able to rotate, and the cutting device of inclination can make accommodating groove can accommodate larger diameter's large -calibre pipe, and can cut off large -calibre pipe in one cutting.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing equipment technology, and more specifically, to a large-diameter pipe cutting device. Background Technology

[0002] In existing technologies, large-diameter pipes need to be cut into sections 20-30 cm long for product inspection. Since the wall thickness and diameter of large-diameter pipes are much larger than those of ordinary pipes, the production line cutting machine cannot cut to this length. Ordinary circular saws cannot cut large-diameter pipes in one go and need to rotate the pipe while cutting. However, the weight of large-diameter pipes makes them difficult to move manually. Manual cutting machines cannot cut them in one go and employees need to cut them multiple times. Moreover, multiple cuts will result in uneven cut surfaces, affecting the inspection quality. Therefore, a technical solution is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and to provide a large-diameter pipe cutting device that can cut large-diameter pipes in one operation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a large-diameter pipe cutting device, including a base and a cutting device. The base includes a support platform and a bracket. The support platform is fixedly installed on the upper end of the bracket, and the upper end of the support platform supports the large-diameter pipe. The cutting device includes a housing and a saw blade. The housing includes a hinged end and a movable end. The hinged end is rotatably connected to the bracket. The saw blade is installed on the housing. The housing includes a receiving groove. The opening of the receiving groove faces the support platform. A portion of the saw blade is located at the opening end of the receiving groove. The saw blade passes through the hinged end and the movable end. The housing rotates, thereby enabling the saw blade to cut the large-diameter pipe.

[0006] Furthermore, the upper surface of the support platform is provided with a groove, which extends along the length of the support platform and consists of two inclined surfaces.

[0007] Furthermore, the support platform includes a through groove that connects the upper and lower surfaces of the support platform. The through groove opens to one side of the support platform and the opening of the through groove faces the cutting device.

[0008] Furthermore, the support platform includes a baffle, which is located on the upper surface of the support platform and on the side of the support platform away from the cutting device. The baffle is inclined, and its upper end is inclined away from the large-diameter pipe.

[0009] Furthermore, the bracket includes a connecting seat, which is located below the center of the support platform and is rotatably connected to the hinge end.

[0010] Furthermore, the bracket includes a limiting frame and a spring, the limiting frame and the spring being located on both sides of the connecting seat, the limiting frame supporting the housing, and the two ends of the spring being connected to the bracket and the housing respectively.

[0011] Furthermore, the rotation direction of the housing is perpendicular to the axial direction of the large-diameter pipe, the housing is inclined, and the housing forms an angle α with the radial direction of the large-diameter pipe in the vertical direction.

[0012] Furthermore, the cutting device includes a handle, which is mounted on the movable end, and the extension direction of the handle is parallel to the axial direction of the large-diameter pipe.

[0013] Furthermore, it includes a fixing device, which includes a fixing frame, a screw, and a pressure plate. The fixing frame is fixedly installed on the bracket, the pressure plate is located above the large-diameter pipe, the screw is installed on the fixing frame, and the screw controls the lifting and lowering of the pressure plate. The lower end face of the pressure plate is two inclined surfaces with the center pointing upwards.

[0014] The beneficial effects of this utility model are:

[0015] This invention uses a rotatable cutting device to cut large-diameter pipes placed on a support platform. The inclined cutting device allows the receiving groove to accommodate larger diameter pipes, enabling the large-diameter pipe to be cut off in one cut. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment.

[0017] Figure 2 This is a schematic diagram of what happens before cutting in this embodiment.

[0018] Figure 3 This is a top view of this embodiment.

[0019] Figure 4 This is a schematic diagram of the cutting device in this embodiment.

[0020] Reference numerals: 1. Base; 11. Support platform; 111. Groove; 112. Through groove; 113. Baffle; 12. Bracket; 121. Connecting seat; 122. Limiting frame; 123. Spring; 2. Cutting device; 21. Hinge end; 22. Movable end; 23. Housing; 231. Receiving groove; 24. Saw blade; 25. Handle; 26. Tensioning device; 3. Fixing device; 31. Fixing frame; 32. Screw; 33. Pressure plate; 101. Large diameter pipe. Detailed Implementation

[0021] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1-4 As shown, this embodiment discloses a large-diameter pipe cutting device, including a base 1 and a cutting device 2. The base 1 includes a support platform 11 and a bracket 12. The support platform 11 is fixedly installed on the upper end of the bracket 12. The upper end surface of the support platform 11 is provided with a groove 111. The groove 111 extends along the length direction of the support platform 11. The groove 111 is composed of two inclined surfaces. The recessed groove 111 can support a large-diameter pipe 101. The triangular groove 111 can adapt to large-diameter pipes 101 of different diameters. The upper end surface of the support platform 11 supports the large-diameter pipe 101. The diameter of the large-diameter pipe 101 is between 200mm and 600mm, and the wall thickness is between 20mm and 60mm. The larger the pipe diameter and the thicker the wall, the more difficult it is to move manually. Generally, it is lifted by a crane for placement and transportation.

[0023] The cutting device 2 includes a housing 23 and a saw blade 24. The housing 23 is generally C-shaped or triangular. The housing 23 includes a receiving groove 231, the opening of which faces the support platform 11. The housing 23 includes a hinge end 21 and a movable end 22, which are the upper and lower ends of the housing 23, respectively. The saw blade 24 is installed in the housing 23 and forms a ring inside the housing 23. A motor is installed in the part of the housing 23 near the hinge end 21, and the motor can drive the ring-shaped saw blade. The saw blade 24 is supported by three rotating wheels installed inside the housing 23. The housing 23 is also equipped with a tensioning device 26, which is located at the end of the housing 23 away from the opening of the receiving groove 231. The tensioning device 26 can control the internal rotating wheels to tension or relax the saw blade 24. Part of the saw blade 24 is located at the opening end of the receiving groove 231. The saw blade 24 passes through the hinge end 21 and the movable end 22. The saw blade 24 is in a vertical state between the hinge end 21 and the movable end 22.

[0024] The support 12 includes a connecting seat 121, which is located below the center of the support platform 11. A hinge end 21 is rotatably connected to the support 12. The cutting device 2 can rotate around the connection point of the connecting seat 121 and the hinge end 21, with the axis of rotation parallel to the axis of the large-diameter pipe 101 being cut. The support 12 includes a limiting frame 122 and a spring 123, located on opposite sides of the connecting seat 121. The saw blade 24 is in its position before cutting the large-diameter pipe 101 when it leaves the support platform 11. The body 23 can be supported by the limiting frame 122, which can support the housing 23 and limit the angle of the housing 23 away from the support platform 11, making it convenient for the operator to operate the cutting device 2. The two ends of the spring 123 are connected to the bracket 12 and the housing 23 respectively. The tension of the spring 123 can pull and buffer the cutting device 2 when it returns to the initial position, and can also provide assistance for the spring 123 to recover its tension when the operator pulls the cutting device 2 to cut, making the operation more labor-saving. When the housing 23 is pulled and rotated, the saw blade 24 can completely pass through and cut the large-diameter pipe 101.

[0025] The support platform 11 includes a through groove 112, which connects the upper and lower end faces of the support platform 11. The through groove 112 opens to one side of the support platform 11 and the opening of the through groove 112 faces the cutting device 2. The through groove 112 provides space for the saw blade 24 to pass through the support platform 11 when cutting the large-diameter pipe 101, preventing interference between the two.

[0026] The support platform 11 includes a baffle 113, which is located on the upper surface of the support platform 11. The baffle 113 is located on the side of the support platform 11 away from the cutting device 2. The baffle 113 is inclined and extends upward. The upper end of the baffle 113 is inclined away from the large-diameter pipe 101. The baffle 113 serves to block the saw blade 24 from danger. The angle at which the housing 23 pulls to cut is limited by the baffle 113. At the same time, the lower part of the housing 23 is also limited by the spring 123. One side of the baffle 113 is the side where the operator stands, which can ensure the safety of manual operation.

[0027] like Figure 3As shown, the rotation direction of the housing 23 is perpendicular to the axial direction of the large-diameter pipe 101. The housing 23 is inclined, and the housing 23 forms an angle α with the radial direction of the large-diameter pipe 101 in the vertical direction. The housing 23 is not perpendicular to the axial direction of the large-diameter pipe 101, but the rotation direction of the housing 23 is perpendicular to the axial direction of the large-diameter pipe 101. Due to the special shape of the housing 23, in order to ensure the stable flow of the saw blade 24 inside the housing 23 and that the saw blade 24 can cut the large-diameter pipe 101, the housing 23 is inclined. This allows the same-sized receiving groove 231 to cut a larger diameter large-diameter pipe 101 in an inclined state.

[0028] The cutting device 2 includes a handle 25, which is mounted on the movable end 22. The extension direction of the handle 25 is parallel to the axial direction of the large-diameter pipe 101. The handle 25 is designed to facilitate the operator to pull the cutting device 2 for cutting.

[0029] This embodiment also includes a fixing device 3, which includes a fixing frame 31, a screw 32, and a pressure plate 33. The fixing frame 31 is fixedly installed on the bracket 12, and the pressure plate 33 is located above the large-diameter pipe 101. The screw 32 is installed on the fixing frame 31 and controls the lifting and lowering of the pressure plate 33. The lower end face of the pressure plate 33 is two inclined surfaces with the center facing upwards. The lower end face of the pressure plate 33 has the same shape as the groove 111, which can press the large-diameter pipe 101 from above. It can adapt to large-diameter pipes 101 of different diameters. This embodiment can also be transferred between workshops by forklift. The weight is not large, which facilitates the circulation of equipment.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A large-diameter pipe cutting device, characterized in that, The device includes a base (1) and a cutting device (2). The base (1) includes a support platform (11) and a bracket (12). The support platform (11) is fixedly installed on the upper end of the bracket (12). The upper end face of the support platform (11) supports a large-diameter pipe (101). The cutting device (2) includes a housing (23) and a saw blade (24). The housing (23) includes a hinge end (21) and a movable end (22). The hinge end (21) is rotatably connected to the bracket. (12) The saw blade (24) is mounted on the housing (23), the housing (23) includes a receiving groove (231) with the opening of the receiving groove (231) facing the support platform (11), a portion of the saw blade (24) is located at the opening end of the receiving groove (231), the saw blade (24) passes through the hinge end (21) and the movable end (22), the housing (23) rotates so that the saw blade (24) can cut the large-diameter pipe (101).

2. The large-diameter pipe cutting device according to claim 1, characterized in that, The upper end face of the support platform (11) is provided with a groove (111), the groove (111) extends along the length direction of the support platform (11), and the groove (111) is composed of two inclined surfaces.

3. The large-diameter pipe cutting device according to claim 1, characterized in that, The support platform (11) includes a through groove (112) that connects the upper and lower surfaces of the support platform (11). The through groove (112) opens to one side of the support platform (11) and the opening of the through groove (112) faces the cutting device (2).

4. The large-diameter pipe cutting device according to claim 1, characterized in that, The support platform (11) includes a baffle (113), which is located on the upper surface of the support platform (11) and on the side of the support platform (11) away from the cutting device (2). The baffle (113) is inclined and its upper end is inclined away from the large-diameter pipe (101).

5. The large-diameter pipe cutting device according to claim 1, characterized in that, The bracket (12) includes a connecting seat (121), which is located below the middle position of the support platform (11), and is rotatably connected to the hinge end (21).

6. The large-diameter pipe cutting device according to claim 5, characterized in that, The bracket (12) includes a limiting frame (122) and a spring (123). The limiting frame (122) and the spring (123) are located on both sides of the connecting seat (121). The limiting frame (122) can support the housing (23). The two ends of the spring (123) are connected to the bracket (12) and the housing (23) respectively.

7. The large-diameter pipe cutting device according to claim 1, characterized in that, The rotation direction of the housing (23) is perpendicular to the axial direction of the large-diameter pipe (101). The housing (23) is inclined and forms an angle α between the housing (23) in the vertical direction and the radial direction of the large-diameter pipe (101).

8. The large-diameter pipe cutting device according to claim 7, characterized in that, The cutting device (2) includes a handle (25) which is mounted on the movable end (22) and extends in a direction parallel to the axis of the large-diameter pipe (101).

9. The large-diameter pipe cutting device according to claim 1, characterized in that, The device includes a fixing device (3), which includes a fixing frame (31), a screw (32), and a pressure plate (33). The fixing frame (31) is fixedly installed on the bracket (12). The pressure plate (33) is located above the large-diameter pipe (101). The screw (32) is installed on the fixing frame (31) and controls the lifting and lowering of the pressure plate (33). The lower end face of the pressure plate (33) is two inclined surfaces with the center facing upwards.

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